Function deleteByIds

deleteByIds(layerId, featureIds): Promise<JId[]>
JMap.Feature.deleteByIds

Deletes the features for the given layer and features ids.
Parameters
- layerId: JId
  the JMap layer id
- featureIds: JId[]
  the JMap feature ids to delete
Returns Promise<JId[]>
Throws
if layer or feature not found

Example
```
// deletes 3 features on layer id="3"
JMap.Feature
 .deleteByIds(3, [4, 5, 16])
 .then(() => console.info("Features have been deleted"))
 .catch(error => console.error("An error occured", error))
```